Add bevel-stroke support in GrAARectRenderer

include/gpu/GrContext.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrContext_DEFINED
 #define GrContext_DEFINED
 
@@ skipping 382 matching lines @@
      *                      the rect is mitered stroked based on strokeWidth. If
      *                      strokeWidth == 0, then the stroke is always a single
      *                      pixel thick.
      *  @param matrix       Optional matrix applied to the rect. Applied before
      *                      context's matrix or the paint's matrix.
      *  The rects coords are used to access the paint (through texture matrix)
      */
     void drawRect(const GrPaint& paint,
                   const SkRect&,
                   SkScalar strokeWidth = -1,
-                  const SkMatrix* matrix = NULL);
+                  const SkMatrix* matrix = NULL,
+                  bool miterStroke = true);

[bsalomon, 2013/09/17 14:40:20]

Could we modify this to take an SkStrokeRec rather than strokeWidth and
miterStroke?

[yunchao, 2013/09/22 08:36:37]

Other places also called GrContext::drawRect. If we use a SkStrokeRec to call
GrContext::drawRect and changed its parameters, many other callers need to
construct a SkStrokeRec instance to store the default value of strokeWidth,
miterStroke. So It may be better to keep this: simply add miterStroke parameter
and give it a default value.

[bsalomon, 2013/09/25 15:26:24]

What about 

void drawRect(const GrPaint&,
              const SkRect&,
              const SkMatrix* matrix = NULL,
              const SkStrokeRec* stroke = NULL);

where NULL for stroke rec means fill?

 
     /**
      * Maps a rect of local coordinates onto the a rect of destination
      * coordinates. Each rect can optionally be transformed. The localRect
      * is stretched over the dstRect. The dstRect is transformed by the
      * context's matrix. Additional optional matrices for both rects can be
      * provided by parameters.
      *
      * @param paint         describes how to color pixels.
      * @param dstRect       the destination rect to draw.
@@ skipping 602 matching lines @@
     }
 
     GrTexture* texture() { return fTexture; }
 
 private:
     GrContext*                    fContext;
     GrTexture*                    fTexture;
 };
 
 #endif